Machine for making cement blocks.



B. L. B'LAIRQ MACHINE FOR MAKING CEMENT BLOCKS. APPLICATION FILED JULY 2a, 1908.

984,531." Patented Feb. 21, 1911.

3 SHETSBEBET 1.

WITNBEEE l lsiv iNu fi 111s NaRRls PETERS c0.. wnsnmayuu, o. 1:.

B. L. BLAIR. MACHINE FOR MAKING CEMENT BLOCKS APPLICATION FILED JULY 2a, 1908.

3 SEEETSSHEET 2.

M I MM l mm INVENTDH- Patented Feb. 21, 1911.

B. L..'IBLAIR'. MACHINE FOR MAKING CEMENT BLOCKS.

APPLIOATiON FILED JULY 23, 1908.

Patented Feb. 21, 1911.

3 SHEETS-SHEET 3.

asses- W UNITED STAES TN FFTQ BENJAMIN LEROY BLAIR, OF DRYDEN, ONTARIO, CANADA.

MACHINE FOR MAKING CEMENT BLOCKS.

To all whom it may concern:

Be it known that I, BENJAMIN LEROY BLAIR, of the village of Dryden, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Machines for Making Cement Blocks, of which the following is the specification.

My invention relates to machines for making cement blocks, particularly to that class of machine in which the block is made with the face to the side, and the objects of the invention are, firstly, to provide a simple, inexpensive, and easily operated machine in which it is unnecessary to move the block after it has been molded, secondly, to provide a machine which can be adjusted for use in connection with various sizes of blocks, and to which an ornamental or artistic face can be applied, and lastly, a machine in which the inclosing sides and ends move away from the molded block.

It consists essentially in a pallet or base plate, a rectangular framework resting on the base plate; hinged side and end members resting on the base plate and adapted to slide on edge thereon; means for adjusting the end plates;,means for forcing the side members apart and drawing them together; and removable cores, the parts being arranged and constructed as hereinafter more particularly described.

Figure 1 is a side elevation of my complete machine showing the hopper in position. Fig. 2 is a plan view as in Fig. 1, the hopper being removed, and the side and end members being shown in the open position. Fig. 3 is an end view as in Fig. 2. Fig. i is an enlarged detailed side elevation of the end and side members showing the manner in which they are connected, and the manner in which the adjustment of such plates is rendered possible. Fig. 5 is an enlarged detailed perspective view of a portion of the hopper. Fig. 6 is an enlarged detailed side elevation of the button employed to hold the ornamental face in position. Fig. 7 is an enlarged detailed perspective View of the hooks supplied on the lower edge of the ornamental plate for attaching purposes. Fig. 8 is a plan view of the machine shown in the closed position and with the core boxes removed. Fig. 9 is an enlarged side elevation of one of the core boxes and its attachments. Fig. 10 is an enlarged detailed inverted plan View of Specification of Letters Patent.

Application filed July 23, 1908.

Patented Feb. 21, 1911.

Serial No. 445,031.

a portion of the body of the pallet; showing the manner in which the core boxes are fastened to it.

In the drawings like characters of reference indicate corresponding parts in each figure.

1 represents the pallet which in actual use is placed horizontally. "On the pallet rests the rectangular frame 2 which is formed from longitudinal and transverse channel bar shaped members 3 and a interconnected the one with the other by vertical channel-shaped members 5 at the corners.

6 are transverse bars inserted intermediate between the upper and lower members 4:, such bars being fastened at their ends firmly to the vertical members 5.

7 are the core boxes of the usual form employed, such boxes being removably secured to the pallet, one to either side of the center. The manner in which they are fastened is as now described The pallet is supplied with two longitudinal slots 8 and 9 in the portion of it on which the core boxes rest, and directly to the ends of the slots are two circular openings 10 and 11, formed also in the pallet.

12 and 13 are pins passing downwardly from the lower face of the core boxes, such pins being spaced apart a distance which will allow them to enter the openings 10 and 11.

1a are rods with their upper ends provided with handles 15, and their lower ends formed in Ts, the bars 16 forming the Ts being adapted to pass into and through the slots. On the upper face of the core boxes are two wedge-shaped bars 17 and 18, against which the handles engage when they are turned.

In placing the core boxes in position the pins are received by the openings 10 and 11 and consequently prevent the core boxes from being turned. The handles are placed in a position which will allow the T-shaped ends to pass into and through the slots. As soon as this is accomplished they are turned and tightened on the wedge-shaped bars and the T-shaped ends prevent the cores from being removed.

19 and 20 are two side members which are of a length sufficient to pass within the framework, such members being held, as later described, on their edges on the pallet. The height of the members is somewhat til more than that which would be necessary for the height of block desired.

21 and are end members placed at right angles to the plates 19 and 20 and of the same height as such plates. The mombcrs 21 and 22 are rendered adjustable in the following manner :Each member is :tormed from two portions 23 and 2d, the portion 23 having two extendin arms and 26 which pass in the plane or the body portion and are provided with elongated slots 27. The portion 24: is also provided with two extending members 28 and 29, such members passing in the plane of the body portion and being spaced apart from center to center a distance which is equal to the distance which the members 25 and 26 are apart. The edges of the members 28 and 29 are turned back *ardly and form a guideway to receive the edges of the members 25 and 26. 30 are thumb screws carried by bolts 31, such bolts passing into and through the slots 27 and having an enlarged head thereon which rests against the inner face of the members 28 and 29. By means of these thumb screws it is possible to adjust the length of the members 21 and 22, as when the thumb screws are released the parts forming them can be either pulled apart or closed together, as will readily be understood.

and are upper and lower sets of hinges, there being four hinges in each set. Those 32 have their one wing fastened se curely to the members 19 and 20 toward the ends and toward the upper edge. The hinges 33 have each one of their wings t'as tened to the members 19 and 20 directly beneath the hinges and toward the upper edges of the members.

Each of the portions 23 and 24: have two projecting and rolled back pieces 3st and 35 and to these parts are attached the free wings of the hinges and by pins 36. Consequently the end members 21 and 22 are doubly hinged to the side members 19 and 20, the pins 36 forming one hinged joint, and the joint between the wings of the hinges forming the other.

37 are levers centered on shafts 38 which are carried in bearings formed in the cross bars (3. the shatts entering the bar centrally of its length. r

39 are quadrants securely fastened to the framework and over which the levers 37 opcrate. The levers are supplied with the ordinary hand latches and detents, the detents operating on the quadrants.

-10 is a crossbar termed. on the end of each shaft within the framework, and 41 and d2 are links connected through a set of eyes 1 with such crossbars. The ends ot the links 1 pass through openings 43 formed centrally and toward the ends of the side members 19 and 20. To the sides or the openings 43 are lugs ll and which are provided with openings to receive pins -ii-(3, such pins be ing adapted to through openings 4-6 provided at intervals toward the ends oil the links.

According to this construction it will be seen that it the lovers are thrown together in either one direction or the other there will be similar motion given to the crossbars and according to the motion the links will be forced apart or drawn together. The motion ot the links is transferred directly to the members 19 and 20, and on account of their interconnection with the end members a motion is also produced in the end members 21 and In order to understand the motion. better, it the lever, as shown in Fig. 3, be thrown downwardly, the side and end members 19 and 20, 21 and 22, respectively, will close together or assume the position indicated by the dotted line in Fig.

47 is a hopper which is used in placing the cement in the machine, and it rests when in position on the tramcworc. The hopper is rendered adjustable in width by being formed from two similar portions which are held together by bolts 41-8 passing through openings 49 provided in both the portions.

in order that the ends of the block may present an even surface it is necessary to in sert plates 50 and 51 in the end members 21 and These plates are suspended from the end members by lugs or hooks 52 which pass outwardly from the plate and hook over the portions 28.

In order that an ornamental taco may be given the cement block made by the machine the member 20 has the central portion cut away at 5 to allow for the insertion a plate 5%, the latter plate being shaped or pressed in order to mold the necessary or namcntal face. This plate when attached to the side member is placed in the opening from the interior of the machine and the sliding hooks 55 pass over the lower edge .56 of the opening. A button 57 pivoted on the ornamental plate is designed to engage with the upper edge of the opening in the side member and hold the ornamental plate in position.

What I. claim as my invention is:

A cement block making machine comprising a supporting pallet, a rectangular frame work supported thereon, vertically disposed side members within the frame work, vertically disposed end members, hinges connecting said end members with the side members, means tor moving said side members toard and a ay from each other and each end member comprising an upright having a pair or arms extending at right angles theretrom and each arm having a slot there-- in. and a second upright also having a pair of arms extending at right angles thereto and each of said arms having a channel Signed at Dryden, in the Province of Ontherein adapted to receive the arms of the tario, this 3rd day of June 1908.

other upri ht, a thumb nut adapted to hold v the arms stationary, and a plate having lugs LEROY BLAIR thereon adapted to engage with the right- \Vfines ses:

C. B. GORDON,

angular extending arms to hold the plate in lVIAX SCHELLENBERG.

position. 

